Paper-cylinder mold



Nav. 10,1925. l1,561,117

J. R. SINCLAIR PAPER CYLINDER MOLD Filedf April 9, 1921 INvLNw-OR LIUHNR- SIND'LMR Patented Nov. 10, 1925.

IPATENT OFFICE.

JOI-IN IR. SINGLAIR, OF HOLYOKE, MASSACHUSETTS.

PAPER-CYLINDER MOLD.

Application lecl April 9, 1921.

To f/,ZZ whom t may @f2/noem:

Be it known that JOHN R. SrNcnnni, a citizen of the United States oit America, rcsiding at Holyoke, in the county oi' Hampden and State of Massachusetts, has invented certain new and useful Improvements in Paper-Cylinder Molds, ot which the tollowing is a specification.

This invention relates to improvements in cylinders and r-olls for paperI making and working machinery and one ot the objects ot the invention is to provide a foraininous cylinder or roll construction in which the use of intermediate spiders and reinforcing rods connected thereto is eliminated and the body of the cylinder or roll is built uponan extended helix composed ot' tlat ribbon metal and sti'tl'ened by spirally disposed bonding wires and longitudinally disposed bonding elements secured to the inner and outer edges ot' the helix.

lith the above and other objects in view this invention relates to certain new and use` ful constructions, combinations and arrangements ot parts, clearly described in the following speciiication and fully illustrated in the accompanying` drawings, in which:

Figure 1 is a side elevation.

Figure 2 is a transverse sectional,view.

Figure 3 is an end view.

Referring to the accompanying drawings 5 and 6 designate the end spiders or supports each ot which is provided with a trunnion 7 of tubular formation or otherwise,

and each spider is formed integral with the radiating arms 8 which are integrally connected to the rim 9.

A series ot longitudinal bonding elements or stay rods 10 are connected at their opposite ends to the end supports 5 and 6, said ends soldered or otherwise lixed thereto, said rods being spaced circumferentially an equal distance from each other.

A. helix 11 constructed of flat ribbon metal is arranged within the open wall provided by the longitudinal stay rods 10 and Serial No. 460,130.

the outer edge portions ot the separat-ed turns ot' said helix are iixed by solder or other means to the stay rods 10 at the points ot contact therewith. Each end ot the helix is provided with a coil 12 which is 'fastened at a point slightly spaced from the adjacent end support or spider and in substan.

tially parallel relation to the end support or spider. A series ot stay rods or wires 13 are connected at the outer edge portions ot the turns of the helix 11 and are arranged in spiral relation thereto but in a direction opposed to that of the helix and are connected at the points of intersection with a longitudinal stay rod or wires 1() by means of solder or other means. A series ot flat longitudinal stay rods or elements 14 are dis posed against the inner edges ot' the turns of the helix in spaced relation to each other and positively secured by solder' or other means to said inner edges.

The 'liat bars or rods 14 are inserted in slots 14a formed in the helix 11 so that the outer edge portions of said rods 14 will be flush with the outer periphery of the helix 1l. The points of engagement between the rods and the helix are stiened by solder which serves to iix the engaging parts against relative motion under the rolling action developed underwvorking conditions.

Having described my invention I claim;

A paper cylinder mold consisting ot end spiders having circular rims and hubs, trunnions mounted in the hubs, a flat helix liaving end coils parallel to each other, united to the rims in parallel relation thereto and holding the spiders in spaced relation, said helix having external notches therein, i'lat bars in said notches flush with the external edge of the helix, a series of rods mounted on the turns of the helix and on the rims and end coils, and a helix extending in an opposite direction to and secured on the first helix.

Signed by me at Holyoke, Mass.

JOI-IN R. SINCLAIR. 

